Question 1515Navigation General

70% to pass

You are outbound in a channel marked by a range astern. The range line is 273° T. You are steering 090° T and have the range in sight as shown in illustration D047NG below. What action should you take?

Diagram for USCG Navigation General: You are outbound in a channel marked by a range astern. The range line is 273°...
A Come right to 093° T.
B Come right to close the range then when on the range steer 093° T.
C Come left until the range comes in line then alter course to 087° T.
D Come left until the range comes in line than alter course to 093° T.
AI Explanation

The correct answer is B) Come right to close the range then when on the range steer 093° T. The reasoning is that when you are outbound in a channel marked by a range astern, you should steer to keep the range lined up. Since you are currently steering 090° T and the range line is 273° T, you need to come right to close the range until it is lined up, then you can steer 093° T to maintain the range. This ensures you stay on the proper course through the channel. The other options are incorrect because A) would take you off the range, C) and D) would involve coming left instead of right to line up the range.

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